Fungal glycoprotein

Maras, M., Saelens, X., Laroy, W. et al. (1997) In vitro conversion of the carbohydrate moiety of fungal glycoproteins to mammalian-type oligosaccharides - evidence for JV-acetylglucosaminyltransferase-I-accepting glycans from Trichoderma reesei. European Journal of Biochemistry, 249 (3), 701-707. 

Bacterial and Fungal Glycoproteins. — No evidence has been found to substantiate the claim for the presence of covalently-bound carbohydrate in energy-transducing adenosine triphosphatases of Escherichia coli. Incomplete removal of sodium dodecyl sulphate (SDS) after SDS-electrophoresis of the protein results in a positive reaction with the periodate-Schiff staining method. 

Thienamycin also was discovered in an assay based on beta-lactamase susceptibility. Mutastein, a fungal glycoprotein that inhibits the synthesis of insoluble glucan by the bacteria causing the formation of dental plaque, has been used commercially as a prophylactic agent for tooth decay. 

Accumulation of hydroxyproline-rich glycoprotein mRNAs in response to fungal elicitor and infection. Proceedings of the National Academy of Sciences, USA, 82, 6551-5. 

The laccase molecule is a dimeric or tetrameric glycoprotein, which contains four copper atoms per monomer, distributed in three redox sites. More than 100 types of laccase have been characterized. These enzymes are glycoproteins with molecular weights of 50-130 kDa. Approximately 45% of the molecular weight of this enzyme in plants are carbohydrate portions, whereas fungal laccases contain less of a carbohydrate portion (10-30%). Some studies have suggested that the carbohydrate portion of the molecule ensures the conformational stability of the globule and protects it from proteolysis and inactivation by radicals (Morozova and others 2007). 

This vitamin is not synthesized in animals, but rather it results from the bacterial or fungal fermentation in the rumen, after which it is absorbed and concentrated during metabolism. Among the known vitamins, this exclusive microbial synthesis is of great interest. One of the major results of vitamin Bn deficiency is pernicious anemia. This disease, however, usually does not result from a dietary deficiency of the vitamin, but rather by an absence of a glycoprotein ( gastric intrinsic factor ) in the gastric juices that facilitates absorption of the vitamin in the intestine. Control of the diseases hence is either by injection of Bn or by oral administration of the intrinsic factor, with or without the vitamin injection. 

There is little work that definitively describes the composition of fungal adhesives. However, it is apparent that fungi do not share either common adhesives or mechanisms for adhesion. One factor that does appear with regularity is that the surface of fungal germ tubes are typically ensheathed by a glycoprotein/carbohydrate matrix (41, 51.r JU.) / and... 

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